H₁ PM F Ho: PMF Ho: PM = PF H₁:PMPF H₁: PM PF Ho: PM PF Ho: PM = F H₁ PM> PF H₁: PM
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- A sample survey by Comcast asked a random sample of customers about use of the Internet and about the type of community they lived in. Here are the results: Internet Users: Rural: 433 Suburban: 1072 Urban: 536 Nonusers: Rural: 463 Suburban: 627 Urban: 388 Is there a relationship between Internet use and community type? Give statistical evidence to support your findings.Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 454 randomly selected adults showed that 56% of them would erase all of their personal information online if they could. Find the value of the test statistic.Below indicate whether the appropriate test would be an independent t-test, dependent t-test, One-way ANOVA, or z-test. A researcher wants to know if people find baby animals cuter than adult animals. All of the participants in a study are shown 10 pictures of baby animals and 10 pictures of adult animals. They are asked to rate (on a 1 to 10 scale) how cute they think each animal is.
- Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 475 randomly selected adults showed that 57% of them would erase all of their personal information online if they could. Find the value of the test statistic.You want to see if a card dealer is favoring one suit over another. You observe the dealer pick a card, put it back in the deck, shuffle, and then repeat the process 288 times. The results are displayed in the table below. Use an αα = 0.10 significance level. outcome frecuency expected frequency spades 48 hearts 72 diamonds 87 clubs 81 The degrees of freedom = ______ The test-statistic for this data =______(3 decimal places) The p-value for this sample =-________( four decimal places.) The p-value is ______α Based on this, we should_______ Thus, the final conclusion is... There is insufficient evidence to conclude that the distribution of suits is not uniform. There is insufficient evidence to conclude that suits and cards are dependent. There is sufficient evidence to conclude that the distribution of suits is uniform. There is sufficient evidence to conclude that suits and cards are dependent. There is sufficient evidence to conclude that the…A survey was developed to estimate the average number of hours per week that adults spend exercising. Every third person entering a large fitness complex was surveyed, with a total of 2,500 people being surveyed. The data showed that the mean number of hours spent exercising was 3.2 hours per week. Which characteristic of the survey could create a bias in the results? The size of the sample The size of the sample The method of analyzing the data The method of analyzing the data The method of choosing the people who were surveyed The method of choosing the people who were surveyed The size of the population
- Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 488 randomly selected adults showed that 56% of them would erase all of their personal information online if they could. Find the value of the test statistic.A software company is interested in improving customer satisfaction rate from the 60% currently claimed. The company sponsored a survey of 148 customers and found that 95 customers were satisfied. What is the test statistic z?Claim: Most adults would erase all of their personal information online if they couldA software firm survey of 697 randomly selected adults showed that 60% of them would erase all of their personal information online they could. Find the value of the test statistic.?
- Describe a study in which you can use both nonparametric and parametric statistics. A researcher has participants expecting to receive either painful or mild electrical shocks during a study wait in a quarter-full waiting room with other participants. He then measures whether they choose to sit next to other participants or if they sit far away on their own. What is the best test to run for this study and why?Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 455 randomly selected adults showed that 61% of them would erase all of their personal information online if they could. Find the value of the test statistic.Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 404 randomly selected adults showed that 65% of them would erase all of their personal information online if they could. Find the value of the test statistic.